blob: 3b51ba4065e7269c18b0f24f37a5dbbb14048f9a [file] [log] [blame]
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/test/pixel/ash_pixel_differ.h"
#include <string>
#include "ash/root_window_controller.h"
#include "ash/shell.h"
#include "base/strings/strcat.h"
namespace ash {
AshPixelDiffer::AshPixelDiffer(const std::string& screenshot_prefix,
const std::optional<std::string>& corpus)
: pixel_diff_(screenshot_prefix, corpus) {}
AshPixelDiffer::~AshPixelDiffer() = default;
bool AshPixelDiffer::CompareScreenshotForRootWindowInRects(
aura::Window* root_window,
const std::string& screenshot_name,
size_t revision_number,
const std::vector<gfx::Rect>& rects_in_screen) {
// Calculate the full image name incorporating `revision_number`.
const std::string full_name = base::StrCat(
{screenshot_name, ".rev_", base::NumberToString(revision_number)});
const aura::WindowTreeHost* const host = root_window->GetHost();
// Handle the case that conversion from the root window's coordinates to pixel
// coordinates is not needed.
if (fabs(host->device_scale_factor() - 1.f) <
std::numeric_limits<float>::epsilon()) {
return pixel_diff_.CompareNativeWindowScreenshotInRects(
full_name, root_window, root_window->bounds(),
&positive_if_only_algorithm_, rects_in_screen);
}
// Convert rects from screen coordinates to pixel coordinates.
std::vector<gfx::Rect> rects_in_pixel;
for (const gfx::Rect& screen_bounds : rects_in_screen) {
gfx::Point top_left = screen_bounds.origin();
gfx::Point bottom_right = screen_bounds.bottom_right();
host->ConvertDIPToPixels(&top_left);
host->ConvertDIPToPixels(&bottom_right);
rects_in_pixel.emplace_back(top_left,
gfx::Size(bottom_right.x() - top_left.x(),
bottom_right.y() - top_left.y()));
}
return pixel_diff_.CompareNativeWindowScreenshotInRects(
full_name, root_window, root_window->bounds(),
&positive_if_only_algorithm_, rects_in_pixel);
}
} // namespace ash